Improvement in apparatus for making extracts for tanning



tinted guette @met tlljlire.

RILEY I. WILSON. OF NEW YORK, N. Y.

Letters Patent'No. 110,710, dated January 3, 1871.

IMPROVEMENT IN APPARATUS FOR MAKING E XTRACTS FOR TANNING.

The Schedule referred to ln these vLetters Patent and making part of Hip fame,

I, RILEY I". WILSON, of New York, in the county and State of New York, have invented certain Improvements in Making Extracts for Tanning and other purposes.

'lhe'first part of my invention relates to the arrangement and combination of thelvarions parts for the purposeof facilitating the leaching and concentrating the same so as toseenro thc bestand uniform The evaporating pan or pans are steam-tight, ,hav-4 ing a tube or tubes connecting with the leacl1ing-vats where the escnpi11g\'apor is condensed, and the substances carried over by the Vapor are lodged in the. bark, thus saving all the products of'the extract.

My plan of operating the apparatus-is as follows: After the receiver has been supplied with a sulicient amount of liquor from the vats by means of a stop-cock, i, I let in a sufiicjent amount of the salme through the pipe f to -n'earljY fill the evapora-ting-pan D. I then let on the steam through' another stopcoek, g, at the same time opening the stopcoek in the vapor-pipe G.

The waste steam from the steanjnchamber F can be' thrown in either of the bnrkwats, oraI`Iowed to es` cape by the common method.

After the extract in the evapora-ting-pan' D- has been sulliciently condensed, it is drawn otf in a vat to cool for bari-cling.

Claims.V

' I claim as my inventionl. The combination of the leaching-rats, receivers,

and evnporuting-pmx, with their connections, substantially as und forthe purpose hereinbefore `set forth.

2. A'steum-tight evaporatng-pau, with connecting tube or tubes to the leachinf-vats snbstantiall ,as

and for the purpose hereinbelbre set fort/h.

3, 'Illiecombination of the steam-chamber and evap- Qrating-pan,,with ,their connections, substantiallyv as 4. Perforated tubes connected with the false lbottom ofthc leach running np into the bark, so that the entire leach may vbe saturated by steam simultan; eously.

RILEY l. IVILSON.

'tnesses:

0. G. BESTEL, RICHARD TRACY. 

